December weather forecast
Onondaga, MI

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Weather in December

The first month of the winter, December, is still a cold month in Onondaga, Michigan, with an average temperature varying between 24.8°F (-4°C) and 34.2°F (1.2°C).

Temperature

As Onondaga enters December, the average high-temperature decreases from the a chilly 45°F (7.2°C) of November to a cold 34.2°F (1.2°C). Onondaga, during December nights, observes an average temperature of 24.8°F (-4°C).

Humidity

In December, the average relative humidity is 85%.

Rainfall

February, November and December are months with the least rain in Onondaga when the rain falls for 4.5 days and typically aggregates up to 0.51" (13mm) of rain.

Snowfall

Months with snowfall are January through May, October through December. In Onondaga, in December, snow falls for 10.1 days, with typically accumulated 0.79" (20mm) of snow. In Onondaga, Michigan, during the entire year, snow falls for 48.4 days and aggregates up to 6.46" (164mm) of snow.

Daylight

The month with the shortest days in Onondaga, Michigan, is December, with an average of 9h and 6min of daylight.
On the first day of the month, sunrise is at 7:48 am and sunset at 5:06 pm. On the last day of December, in Onondaga, sunrise is at 8:07 am and sunset at 5:15 pm EST.

Sunshine

In Onondaga, the average sunshine in December is 3.1h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Onondaga, Michigan. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum UV index of 1 in December translates into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Onondaga?

In Onondaga, 34.2°F (1.2°C) is the average high-temperature and 24.8°F (-4°C) is the average low-temperature during December.

What is the average humidity in December in Onondaga?

In December, the average relative humidity in Onondaga is 85%.

What is the driest month in Onondaga?

The months with the least rainfall in Onondaga, Michigan, are February, November and December Rain falls for 4.5 days and accumulates 0.51" (13mm) of rain.

How many days does it rain in December in Onondaga?

In Onondaga, Michigan, in December, it is raining for 4.5 days, with typically 0.51" (13mm) of accumulated precipitation.

How much does it snow in Onondaga in December?

In Onondaga, in December, snow falls for 10.1 days, with typically accumulated 0.79" (20mm) of snow.

What is the month with the shortest days in Onondaga?

The month with the shortest days in Onondaga is December, with an average of 9h and 6min of daylight.

What is the average length of the day in December in Onondaga?

The average day length in December in Onondaga, Michigan, is 9h and 8min.

When is the sunrise / sunset in December in Onondaga?

On the first day of December, sunrise is at 7:48 am and sunset at 5:06 pm. On the last day of the month, sunrise is at 8:07 am and sunset at 5:15 pm EST.

How long on average sun shines in December in Onondaga?

In December, the average sunshine duration is 3.1h.

What are the months with the lowest UV index in Onondaga?

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Onondaga, Michigan.

How high is the UV index in December in Onondaga?

In December, the average daily maximum UV index in Onondaga is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Onondaga, MI

Average temperature in December - Onondaga, MI
  • Average high temperature in December: 34.2°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (27.7°F).

  • Average low temperature in December: 24.8°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure in December
Onondaga, MI

Average pressure in December - Onondaga, MI
  • Average pressure in December: 30.08"Hg

The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Onondaga, MI

Average wind speed in December - Onondaga, MI
  • Average wind speed in December: 9.8mph

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

Average humidity in December
Onondaga, MI

Average humidity in December - Onondaga, MI
  • Average humidity in December: 85%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (77%).

Average rainfall in December
Onondaga, MI

Average rainfall in December - Onondaga, MI
  • Average rainfall in December: 0.51"

The wettest month (with the highest rainfall) is May (1.54").
The driest months (with the least rainfall) are February, November and December (0.51").

Average rainfall days in December
Onondaga, MI

Average rainfall days in December - Onondaga, MI
  • Average rainfall days in December: 4.5 days

The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is February (4.1 days).

Average snowfall in December
Onondaga, MI

Average snowfall in December - Onondaga, MI
  • Average snowfall in December: 0.79"

The month with the highest snowfall is February (1.85").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Onondaga, MI

Average snowfall days in December - Onondaga, MI
  • Average snowfall days in December: 10.1 days

The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Onondaga, MI

Average daylight in December / Average sunshine in December - Onondaga, MI
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in December: 3h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).

Average sunshine days in December
Onondaga, MI

Average sunshine days in December - Onondaga, MI
  • Average sunshine days in December: 17.4 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (13.6 days).

Average UV index in December
Onondaga, MI

Average UV index in December - Onondaga, MI
  • Average UV index in December: 1

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in December
Onondaga, MI

Average cloud cover in December - Onondaga, MI
  • Average cloud cover in December: 68

The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in December
Onondaga, MI

Average visibility in December - Onondaga, MI
  • Average visibility in December: 6mi

The months with the highest visibility are March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, August and September (5mi).

Onondaga, Michigan, USA

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